Home / 31,789.22-47,681.71-13,064.41

Finding the Fourth Proportional to 31,789.22, 47,681.71 and 13,064.41

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Solution

The fourth proportional to 31,789.22, 47,681.71 and 13,064.41 is: 19,595.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,789.22 : 47,681.71 = 13,064.41 : x
  2. Step 2: Convert to fraction form
    31,789.22/47,681.71 = 13,064.41/x
  3. Step 3: Cross multiply
    31,789.22x = 47,681.71 × 13,064.41
  4. Step 4: Simplify right side
    31,789.22x = 622,933,408.94
  5. Step 5: Solve for x
    x = 622,933,408.94/31,789.22
  6. Step 6: Final answer
    x = 19,595.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.